Gyrus rectus
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The gyrus rectus, or straight rectus, is located inferomedially onat the medial most margin of the inferior surface of frontal lobe 1,2. Its function is unclear but it may be involved in higher cognitive function (e.g. personality) 3.
Gross anatomy
The gyrus rectus is bounded medially by the interhemispheric fissure and laterally and wraps around to the inferomedial surface of the frontal lobe, where it is separated from the rostral gyrus by the olfactoryinferior rostral sulcus which separates5. Inferolaterally it is separated from the medial orbital gyrus by the olfactory sulcus. ItAnteriorly, gyrus rectus is continuous with the superior frontal gyrus anteriorly (or more precisely the inferior frontopolar gyrus of the frontal pole) 1, 2, 4.
Relations
- anteriorly: anterior cranial fossa floor
- superiorly:
superiorinferior rostral sulcusof Eberstaller - inferolaterally: olfactory bulbs
- posteriorly:septal area, anterior perforated substance and optic chiasm 1, 2
Related pathology
-<p>The<strong> gyrus rectus</strong>, or <strong>straight rectus</strong>, is located inferomedially on the <a href="/articles/frontal-lobe">frontal lobe</a> <sup>1,2</sup>. Its function is unclear but it may be involved in higher cognitive function (e.g. personality) <sup>3</sup>.</p><h4>Gross anatomy</h4><p>The gyrus rectus is bounded medially by the <a title="Great longitudinal fissure" href="/articles/great-longitudinal-fissure">great longitudinal fissure</a> and laterally by the olfactory sulcus which separates it from the medial orbital gyrus. It is continuous with the <a href="/articles/frontal-gyri">superior frontal gyrus</a> anteriorly <sup>1, 2</sup>.</p><h5>Relations</h5><ul>- +<p>The<strong> gyrus rectus</strong>, or <strong>straight rectus</strong>, is located at the medial most margin of the inferior surface of <a href="/articles/frontal-lobe">frontal lobe</a> <sup>1,2</sup>. Its function is unclear but it may be involved in higher cognitive function (e.g. personality) <sup>3</sup>.</p><h4>Gross anatomy</h4><p>The gyrus rectus is bounded medially by the <a title="Interhemispheric fissure" href="/articles/interhemispheric-fissure">interhemispheric fissure</a> and wraps around to the inferomedial surface of the frontal lobe, where it is separated from the <a title="Rostral gyrus" href="/articles/rostral-gyrus">rostral gyrus</a> by the inferior rostral sulcus <sup>5</sup>. Inferolaterally it is separated from the <a href="/articles/medial-orbital-gyrus">medial orbital gyrus</a> by the <a href="/articles/olfactory-sulcus">olfactory sulcus</a>. Anteriorly, gyrus rectus is continuous with the <a href="/articles/frontal-gyri">superior frontal gyrus</a> anteriorly (or more precisely the inferior frontopolar gyrus of the <a title="Frontal pole" href="/articles/frontal-pole">frontal pole</a>) <sup>1, 2, 4</sup>.</p><h5>Relations</h5><ul>
-<li>superiorly: superior rostral sulcus of Eberstaller</li>- +<li>superiorly: inferior rostral sulcus</li>
-<li>posteriorly: <a href="/articles/anterior-perforated-substance">anterior perforated substance</a> and <a href="/articles/optic-chiasm">optic chiasm</a> <sup>1, 2</sup>- +<li>posteriorly: <a title="Septal area" href="/articles/septal-area">septal area</a>, <a href="/articles/anterior-perforated-substance">anterior perforated substance</a> and <a href="/articles/optic-chiasm">optic chiasm</a> <sup>1, 2</sup>
References changed:
- 4. Mai JK, Majtanik M, Paxinos G. Atlas of the Human Brain. Academic Press. (2015) ISBN:0128028017. <a href="http://books.google.com/books?vid=ISBN0128028017">Read it at Google Books</a> - <a href="http://www.amazon.com/gp/product/0128028017">Find it at Amazon</a><span class="auto"></span>
- 5. Borden NM, Forseen SE, Stefan C. Imaging Anatomy of the Human Brain. Demos Medical. (2015) ISBN:1936287749. <a href="http://books.google.com/books?vid=ISBN1936287749">Read it at Google Books</a> - <a href="http://www.amazon.com/gp/product/1936287749">Find it at Amazon</a><span class="auto"></span>
Images Changes:
Image 1 Diagram (Gyrus rectus) ( create )
Image 2 Diagram (Gyrus rectus) ( create )
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